Otitis externa is one of the most common and painful conditions in dogs, affecting breeds with pendulous ears and those prone to allergies.
Ear infections cause significant pain and discomfort evidenced by head shaking, scratching, and reluctance to have the head touched. Chronic infections that recur without addressing underlying allergy cause months or years of intermittent pain. Dogs with chronic ear disease often show behavioral changes including irritability and reduced activity. Addressing underlying causes rather than just treating infections prevents chronic suffering.